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Part A Which is not true about beta-sheets? O Antiparallel sheets provide better hydrogen bonding than...
Part A Which is not true about beta-sheets? Antiparallel sheets provide better hydrogen bonding than parallel sheets Antiparallel is when two peptide strands run in opposite directions The sheets are pleated The side chain of the residues are side-by-side (planar) to the peptide backbone
Which is not true about silk fibroin? O Residues contain small sidechains (like alanine and glycine). O It is a form of tertiary structure O It contains parallel beta-sheets O The peptide strands are tightly packed to enhance tensile strength. Submit Request Answer
Which of the following is true about proteins? a. Peptides linkages are made between the side chain and the carboxyl group. b. Hydrogen bonding between the NH and CEO of the backbone results in only alpha helices! c. Electrostatic interactions between the NH and C=O of the backbone results in only beta sheets. d. Quaternary structures of proteins involve multiple peptide chains interacting together.
Which is not true about silk fibroin? Residues contain small sidechains (like alanine and glycine). O It is a form of tertiary structure o It contains parallel beta-sheets The peptide strands are tightly packed to enhance tensile stroneth
Which is not true about silk fibroin? Residues contain small sidechains (like alanine and glycine). O It is a form of tertiary structure O It contains parallel beta-sheets O The peptide strands are tightly packed to enhance tensile strength.
Which of the following is true of secondary structure in protein folding? Pick ALL that apply. A. It involves hydrogen bonding. B. It involves the side chains. C. It involves hydrophobic interactions. D. It results in alpha helicies with the side chains hidden inside the helix. E. It results in beta-pleated sheets with side chains sticking out of the plain of the sheet. F. It involves the peptide backbone.
Understand alpha helices and beta pleated sheets Question Which of the following statements is not true about R groups in B-pleated sheet? a. The R groups of the peptide chain point outside. b. The R groups are attached to the carbons and extend above and below the folds of the pleat. c. The amino acids tend to have smaller R groups. Select the correct answer below: a and b a and c b and c only a FEEDBACK MORE INSTRUCTION...
Part B Which of the following statements about DNA structure is true? View Available Hint(s) The pentose sugar in DNA is ribose. O ooo Hydrogen bonds formed between the sugar.phosphate backbones of the two DNA chains help to stabilize DNA structure Nucleic acids are formed through phosphodiester bonds that link nucleosides together. The nucleic acid strands in a DNA molecule are oriented antiparallel to each other, meaning they run in opposite directions. Submit Part What is the complementary DNA sequence...
- Part A Regarding the strategy of peptide synthesis, which statement is true? o The N-terminal amino acid is protected using a t-BOC group. o The N-protected amino acid is activated using DCCD. o The reaction of the second amino acid with the first proceeds by way of nucleophilic acyl substitution o Removing the protecting group drives the reaction to the completion o All of the above Submit Request Answer Provide Feedback
26. Which of the following classification does not match the amino acid side chain A) Contains an basic group/ lysine B) It is polar C) Forms disulfide bond/ cysteine D) Forms hydrogen bonds with neighbors/ alanine serine 27. All amino acids found in proteins are L-amino acids EXCEPT the achiral. A) glutamate B) Lysine C) glyeine D) Alamine 28. The plH at which the positive and negative charges of an amino acid balance each ofher is called the A) isotonic...